Boy, the USPS website doesn't make it easy to find. Matter of fact, looks like you need to plug in the information for estimated shipping to even get information.

So I'm going from memory. For First Class mail, they go on a Zone plan. Mail within your zone is supposed to be delivered within 3 days. For every zone away from yours, it's another day.

Without knowing your zip and their zip, here is the best link I was able to find for this question. It simply lists all zips and what zone they're in:

https://aruntx.com/shop/zone/
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They tell you it takes 2-5 days. But most often only 2 business days. Longest I've ever waited was 3 days.
Source(s):
A long personal experience.

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It usually takes 3-4 days, up to 10 days. It could be delayed by weather, distance, etc. At most, a first class mail would take 10 days from my experience. Longer times could happen with greater distances, so my best bet is to give it least a week. In the future you can think of purchasing a signature receipt so that you can see exactly how many days it takes.
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